diff --git a/app/Http/Controllers/Sales/TenantProspectController.php b/app/Http/Controllers/Sales/TenantProspectController.php
index d44472a8..730babef 100644
--- a/app/Http/Controllers/Sales/TenantProspectController.php
+++ b/app/Http/Controllers/Sales/TenantProspectController.php
@@ -65,6 +65,7 @@ public function store(Request $request)
             'contact_email' => 'nullable|email|max:100',
             'address' => 'nullable|string|max:500',
             'business_card' => 'nullable|image|max:5120',
+            'business_card_image_data' => 'nullable|string',
             'memo' => 'nullable|string|max:1000',
         ]);
 
@@ -79,9 +80,14 @@ public function store(Request $request)
         // 등록자는 현재 로그인 사용자
         $validated['registered_by'] = auth()->id();
 
+        // Base64 이미지 데이터가 있으면 전달
+        $businessCardBase64 = $validated['business_card_image_data'] ?? null;
+        unset($validated['business_card_image_data']);
+
         $this->service->register(
             $validated,
-            $request->file('business_card')
+            $request->file('business_card'),
+            $businessCardBase64
         );
 
         return redirect()->route('sales.prospects.index')
diff --git a/app/Services/Sales/TenantProspectService.php b/app/Services/Sales/TenantProspectService.php
index 94f46c24..655fa5c5 100644
--- a/app/Services/Sales/TenantProspectService.php
+++ b/app/Services/Sales/TenantProspectService.php
@@ -14,17 +14,19 @@ class TenantProspectService
     /**
      * 명함 등록 (영업권 확보)
      */
-    public function register(array $data, ?UploadedFile $businessCard = null): TenantProspect
+    public function register(array $data, ?UploadedFile $businessCard = null, ?string $businessCardBase64 = null): TenantProspect
     {
-        return DB::transaction(function () use ($data, $businessCard) {
+        return DB::transaction(function () use ($data, $businessCard, $businessCardBase64) {
             $now = now();
             $expiresAt = $now->copy()->addMonths(TenantProspect::VALIDITY_MONTHS);
             $cooldownEndsAt = $expiresAt->copy()->addMonths(TenantProspect::COOLDOWN_MONTHS);
 
-            // 명함 이미지 저장
+            // 명함 이미지 저장 (파일 업로드 또는 Base64)
             $businessCardPath = null;
             if ($businessCard) {
                 $businessCardPath = $this->uploadBusinessCard($businessCard, $data['registered_by']);
+            } elseif ($businessCardBase64) {
+                $businessCardPath = $this->saveBase64Image($businessCardBase64, $data['registered_by']);
             }
 
             return TenantProspect::create([
@@ -265,6 +267,32 @@ private function uploadBusinessCard(UploadedFile $file, int $userId): string
         return $this->uploadAttachment($file, $userId);
     }
 
+    /**
+     * Base64 이미지 저장
+     */
+    private function saveBase64Image(string $base64Data, int $userId): ?string
+    {
+        // data:image/jpeg;base64,... 형식에서 데이터 추출
+        if (preg_match('/^data:image\/(\w+);base64,/', $base64Data, $matches)) {
+            $extension = $matches[1];
+            $base64Data = preg_replace('/^data:image\/\w+;base64,/', '', $base64Data);
+        } else {
+            $extension = 'jpg';
+        }
+
+        $imageData = base64_decode($base64Data);
+        if ($imageData === false) {
+            return null;
+        }
+
+        $storedName = Str::uuid() . '.' . $extension;
+        $filePath = "prospects/{$userId}/{$storedName}";
+
+        Storage::disk('tenant')->put($filePath, $imageData);
+
+        return $filePath;
+    }
+
     /**
      * 명함 이미지 삭제
      */